Polesuk B S, Helms C A
Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA.
Radiology. 1998 May;207(2):361-2. doi: 10.1148/radiology.207.2.9577481.
Magnetic resonance (MR) imaging of the forearm was performed to evaluate a presumed forearm soft-tissue tumor in a 26-year-old man. Sagittal and axial images revealed a mass isointense to muscle just medial to the flexor carpi radialis tendon (in the expected location of the palmaris longus muscle). A diagnosis of hypertrophied palmaris longus muscle was made. The radiologist must be familiar with the MR imaging appearance of normal variants of the palmaris longus muscle, as this can obviate surgery.
对一名26岁男性进行了前臂磁共振（MR）成像，以评估一个推测的前臂软组织肿瘤。矢状面和轴位图像显示，在桡侧腕屈肌腱内侧（掌长肌的预期位置）有一个与肌肉等信号的肿块。诊断为掌长肌肥大。放射科医生必须熟悉掌长肌正常变异的MR成像表现，因为这可以避免手术。
